Combining two paths, we will get a rectangle. The diagonal of the rectangle will create two right angel triangles. So the area will be same for each path.
The area A of the rectangle is,


So the area of path 1 which is in the direction counterclockwise will be -45 J. It signifies that the work done on the gas will be – (-45 kJ) or 45 kJ. Thus the work done on the gas for path 2 will be the negative of path 1, as it is in the clockwise direction. Therefore the area for path 2 will be 45 kJ.